1. Company on track to meet or exceed 2010 goals for safety, energy intensity, greenhouse gases and waste
2. Newly released 2010 Sustainability Report details industry-leading commitment to safety, health and the environment
3. Winner of ACC’s 2010 Responsible Care Initiative of Year Award for continuous progress in safety and sustainability

DALLAS and NEW YORK CITY (May 11, 2010) -- Celanese Corporation (NYSE: CE), a leading, global chemical company, today announced its five-year Environmental Health and Safety (EHS) sustainability goals for the areas of occupational safety performance, energy intensity, greenhouse gases (GHGs) and waste management for the year 2015.

“Celanese has remained on-course to meet or exceed our aggressive 2010 sustainability goals,” said Dave Weidman, chairman and CEO, Celanese. “Building on that foundation, we are setting new, equally aggressive targets for 2015. We are expanding our strategic internal programs to reduce energy, GHGs and waste intensity while maintaining our strong economic position. We believe this demonstrates that significant environmental improvements are both achievable and compatible with the corporation’s growth and financial performance.”

2015 EHS Goals

The company’s 2015 EHS sustainability goals include (from a 2010 baseline value):

• Energy: 20% decrease in intensity over five years
• GHGs: 20% decrease in intensity over five years
• Waste: 25% decrease in intensity over five years
• Air Emissions: 25% decrease in intensity over five years
• OIR (OSHA incident rate): 0.07; a decrease of 70 percent from the 2010 goal of 0.22
• LTIR (lost time incident rate): 0.0

Commenting on the company’s 2015 EHS goals, Jim Alder, senior vice president, Operations & Technical, said: “Celanese will continue to improve operations at all of our sites to enhance environmental and safety performance and to increase benefits to our employees and contractors, the communities where we operate, and our customers and shareholders.”

Celanese’s EHS efforts have a measurable impact on key stakeholders, including:

• Employees and Communities: Celanese’s EHS efforts contribute to injury-free workplaces as well as a reduction of more than 4 million tons of carbon dioxide emissions per year.
• Shareholders: In the last five years, Celanese energy and waste reduction programs have delivered more than $200 million per year in sustainable productivity improvements.
• Customers: Celanese delivers product innovation from low-VOC, low-odor products such as our EcoVAE® water-based emulsions to “green” solutions for extreme and mainstream plastics applications. These applications are delivering innovative technology advancements that enable customers to create high-quality, eco-friendly products.

2010 Sustainability Report highlights chemical industry leadership

In announcing its 2015 EHS sustainability goals, Celanese also announces the release of its updated 2010 Sustainability Report detailing the corporation’s industry-leading accomplishments that are driving industry leading safety performance as well as award-winning accomplishments in environmental stewardship across the company’s global operations.

In this year’s report, Celanese highlights the company’s premier performance in key areas, including:

• Safety leadership: safety is a precondition for everything Celanese does as the company continues to seek ways to keep people, property and communities safe. Safety is one of the company’s core values, and keeping safety at the forefront is accomplished through vigilance, prevention, training and awareness programs. For 2009, Celanese reached an OSHA (Occupational Safety and Health Administration) safety incident rate of 0.22, the leader among chemical industry peers.

• Energy reduction: Celanese is on track to exceed its 2010 energy intensity reduction goal of 20 percent from its 2005 baseline value. By year-end 2009, Celanese achieved a 19-percent reduction. Based on industry benchmark data, Celanese has one of the most aggressive reduction goals in the chemical industry.

• Environmental protection: from air emissions and GHGs to waste and water management, Celanese continues to reflect the company’s core values by committing to long-term environmental stewardship. The 2010 Sustainability Report provides detailed examples of the company’s energy, air, waste and water reduction progress and successes.

Recent ACC Recognition

Celanese was awarded on May 5, 2010, the American Chemistry Council’s 2010 Responsible Care Initiative of the Year Award based on the company’s continuous progress in safety and environmental sustainability.

In 2009, the ACC created the Initiative of the Year Award to recognize those companies that have undertaken specific programs or activities that demonstrate leadership in the areas of employee health and safety, security or environmental protection in the chemical industry.

“Consistent with our performance-driven culture, Celanese’s approach to environmental stewardship and sustainability is pragmatic and business-focused,” said Alder. “Celanese is proud to demonstrate that thoughtful, sustainable practices and sound business strategies can work together to reduce our corporation’s environmental footprint without compromising financial performance.”

For more information about the company’s EHS practices and to access the full 2010 Celanese Sustainability Report, visit www.celanese.com.

About Celanese

Celanese Corporation is a global technology leader in the production of specialty materials and chemical products which are used in most major industries and consumer applications. Our products, essential to everyday living, are manufactured in North America, Europe and Asia. Known for operational excellence, sustainability and premier safety performance, Celanese delivers value to customers around the globe with best-in-class technologies. Based in Dallas, Texas, the company employs approximately 7,400 employees worldwide and had 2009 net sales of $5.1 billion, with approximately 73% generated outside of North America. For more information about Celanese Corporation and its global product offerings, visit www.celanese.com.